 /*******************************************************************************
  * Copyright (c) 2006, 2007 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  *******************************************************************************/

 package org.eclipse.core.internal.databinding.observable.tree;

 import org.eclipse.core.databinding.observable.Realm;
 import org.eclipse.core.databinding.observable.set.IObservableSet;

 /**
  * @since 1.0
  *
  */
 public interface IUnorderedTreeProvider {
     /**
      * @return the realm for the createChildSet method
      */
     public Realm getRealm();
     
     /**
      * Returns the children of the given element, or null if the element is a leaf node.
      * The caller of this method is expected to dispose the result set when it is no
      * longer needed.
      *
      * @param element element to query
      * @return the children of the given element, or null if the element is a leaf node
      */
     IObservableSet createChildSet(Object element);
 }

